kernel/drivers/staging/rtl8192e/rtl819x_HTProc.c

   1 /******************************************************************************
   2  * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
   3  *
   4  * This program is distributed in the hope that it will be useful, but WITHOUT
   5  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   6  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   7  * more details.
   8  *
   9  * You should have received a copy of the GNU General Public License along with
  10  * this program; if not, write to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  12  *
  13  * The full GNU General Public License is included in this distribution in the
  14  * file called LICENSE.
  15  *
  16  * Contact Information:
  17  * wlanfae <wlanfae@realtek.com>
  18 ******************************************************************************/
  19 #include "rtllib.h"
  20 #include "rtl819x_HT.h"
  21 u8 MCS_FILTER_ALL[16] = {
  22         0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  23         0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
  24 };
  25
  26 u8 MCS_FILTER_1SS[16] = {
  27         0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
  28         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
  29 ;
  30
  31 u16 MCS_DATA_RATE[2][2][77] = {
  32         {{13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78, 104, 156, 208, 234,
  33          260, 39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416,
  34          468, 520, 0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182,
  35          182, 208, 156, 195, 195, 234, 273, 273, 312, 130, 156, 181, 156,
  36          181, 208, 234, 208, 234, 260, 260, 286, 195, 234, 273, 234, 273,
  37          312, 351, 312, 351, 390, 390, 429},
  38         {14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
  39          43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520,
  40          578, 0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231,
  41          173, 217, 217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260,
  42          231, 260, 289, 289, 318, 217, 260, 303, 260, 303, 347, 390, 347, 390,
  43          433, 433, 477} },
  44         {{27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486,
  45          540, 81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648,
  46          864, 972, 1080, 12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324,
  47          378, 378, 432, 324, 405, 405, 486, 567, 567, 648, 270, 324, 378, 324,
  48          378, 432, 486, 432, 486, 540, 540, 594, 405, 486, 567, 486, 567, 648,
  49          729, 648, 729, 810, 810, 891},
  50         {30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540,
  51          600, 90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720,
  52          960, 1080, 1200, 13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360,
  53          420, 420, 480, 360, 450, 450, 540, 630, 630, 720, 300, 360, 420, 360,
  54          420, 480, 540, 480, 540, 600, 600, 660, 450, 540, 630, 540, 630, 720,
  55          810, 720, 810, 900, 900, 990} }
  56 };
  57
  58 static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
  59
  60 static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
  61
  62 static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
  63
  64 static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f};
  65
  66 static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
  67
  68 static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
  69
  70 static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
  71
  72 static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
  73
  74 static u8 DLINK_ATHEROS_1[3] = {0x00, 0x1c, 0xf0};
  75
  76 static u8 DLINK_ATHEROS_2[3] = {0x00, 0x21, 0x91};
  77
  78 static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
  79
  80 static u8 LINKSYS_MARVELL_4400N[3] = {0x00, 0x14, 0xa4};
  81
  82 void HTUpdateDefaultSetting(struct rtllib_device *ieee)
  83 {
  84         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
  85
  86         pHTInfo->bAcceptAddbaReq = 1;
  87
  88         pHTInfo->bRegShortGI20MHz = 1;
  89         pHTInfo->bRegShortGI40MHz = 1;
  90
  91         pHTInfo->bRegBW40MHz = 1;
  92
  93         if (pHTInfo->bRegBW40MHz)
  94                 pHTInfo->bRegSuppCCK = 1;
  95         else
  96                 pHTInfo->bRegSuppCCK = true;
  97
  98         pHTInfo->nAMSDU_MaxSize = 7935UL;
  99         pHTInfo->bAMSDU_Support = 0;
 100
 101         pHTInfo->bAMPDUEnable = 1;
 102         pHTInfo->AMPDU_Factor = 2;
 103         pHTInfo->MPDU_Density = 0;
 104
 105         pHTInfo->SelfMimoPs = 3;
 106         if (pHTInfo->SelfMimoPs == 2)
 107                 pHTInfo->SelfMimoPs = 3;
 108         ieee->bTxDisableRateFallBack = 0;
 109         ieee->bTxUseDriverAssingedRate = 0;
 110
 111         ieee->bTxEnableFwCalcDur = 1;
 112
 113         pHTInfo->bRegRT2RTAggregation = 1;
 114
 115         pHTInfo->bRegRxReorderEnable = 1;
 116         pHTInfo->RxReorderWinSize = 64;
 117         pHTInfo->RxReorderPendingTime = 30;
 118 }
 119
 120 u16 HTMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
 121 {
 122         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 123
 124         u8      is40MHz = (pHTInfo->bCurBW40MHz) ? 1 : 0;
 125         u8      isShortGI = (pHTInfo->bCurBW40MHz) ?
 126                             ((pHTInfo->bCurShortGI40MHz) ? 1 : 0) :
 127                             ((pHTInfo->bCurShortGI20MHz) ? 1 : 0);
 128         return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
 129 }
 130
 131 u16  TxCountToDataRate(struct rtllib_device *ieee, u8 nDataRate)
 132 {
 133         u16     CCKOFDMRate[12] = {0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18,
 134                                    0x24, 0x30, 0x48, 0x60, 0x6c};
 135         u8      is40MHz = 0;
 136         u8      isShortGI = 0;
 137
 138         if (nDataRate < 12)
 139                 return CCKOFDMRate[nDataRate];
 140         if (nDataRate >= 0x10 && nDataRate <= 0x1f) {
 141                 is40MHz = 0;
 142                 isShortGI = 0;
 143         } else if (nDataRate >= 0x20  && nDataRate <= 0x2f) {
 144                 is40MHz = 1;
 145                 isShortGI = 0;
 146         } else if (nDataRate >= 0x30  && nDataRate <= 0x3f) {
 147                 is40MHz = 0;
 148                 isShortGI = 1;
 149         } else if (nDataRate >= 0x40  && nDataRate <= 0x4f) {
 150                 is40MHz = 1;
 151                 isShortGI = 1;
 152         }
 153         return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf];
 154 }
 155
 156 bool IsHTHalfNmodeAPs(struct rtllib_device *ieee)
 157 {
 158         bool                    retValue = false;
 159         struct rtllib_network *net = &ieee->current_network;
 160
 161         if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
 162             (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
 163             (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
 164             (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
 165             (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
 166             (net->ralink_cap_exist))
 167                 retValue = true;
 168         else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
 169                 !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
 170                 !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ||
 171                 (net->broadcom_cap_exist))
 172                 retValue = true;
 173         else if (net->bssht.bdRT2RTAggregation)
 174                 retValue = true;
 175         else
 176                 retValue = false;
 177
 178         return retValue;
 179 }
 180
 181 static void HTIOTPeerDetermine(struct rtllib_device *ieee)
 182 {
 183         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 184         struct rtllib_network *net = &ieee->current_network;
 185
 186         if (net->bssht.bdRT2RTAggregation) {
 187                 pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK;
 188                 if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_92SE)
 189                         pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK_92SE;
 190                 if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_SOFTAP)
 191                         pHTInfo->IOTPeer = HT_IOT_PEER_92U_SOFTAP;
 192         } else if (net->broadcom_cap_exist)
 193                 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
 194         else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
 195                  !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
 196                  !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3))
 197                 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
 198         else if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
 199                  (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
 200                  (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
 201                  (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
 202                  (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
 203                   net->ralink_cap_exist)
 204                 pHTInfo->IOTPeer = HT_IOT_PEER_RALINK;
 205         else if ((net->atheros_cap_exist) ||
 206                 (memcmp(net->bssid, DLINK_ATHEROS_1, 3) == 0) ||
 207                 (memcmp(net->bssid, DLINK_ATHEROS_2, 3) == 0))
 208                 pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS;
 209         else if ((memcmp(net->bssid, CISCO_BROADCOM, 3) == 0) ||
 210                   net->cisco_cap_exist)
 211                 pHTInfo->IOTPeer = HT_IOT_PEER_CISCO;
 212         else if ((memcmp(net->bssid, LINKSYS_MARVELL_4400N, 3) == 0) ||
 213                   net->marvell_cap_exist)
 214                 pHTInfo->IOTPeer = HT_IOT_PEER_MARVELL;
 215         else if (net->airgo_cap_exist)
 216                 pHTInfo->IOTPeer = HT_IOT_PEER_AIRGO;
 217         else
 218                 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
 219
 220         RTLLIB_DEBUG(RTLLIB_DL_IOT, "Joseph debug!! IOTPEER: %x\n",
 221                      pHTInfo->IOTPeer);
 222 }
 223
 224 static u8 HTIOTActIsDisableMCS14(struct rtllib_device *ieee, u8 *PeerMacAddr)
 225 {
 226         return 0;
 227 }
 228
 229
 230 static bool HTIOTActIsDisableMCS15(struct rtllib_device *ieee)
 231 {
 232         return false;
 233 }
 234
 235 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct rtllib_device *ieee)
 236 {
 237         return false;
 238 }
 239
 240 static u8 HTIOTActIsDisableEDCATurbo(struct rtllib_device *ieee, u8 *PeerMacAddr)
 241 {
 242         return false;
 243 }
 244
 245 static u8 HTIOTActIsMgntUseCCK6M(struct rtllib_device *ieee,
 246                                  struct rtllib_network *network)
 247 {
 248         u8      retValue = 0;
 249
 250
 251         if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
 252                 retValue = 1;
 253
 254         return retValue;
 255 }
 256
 257 static u8 HTIOTActIsCCDFsync(struct rtllib_device *ieee)
 258 {
 259         u8      retValue = 0;
 260
 261         if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
 262                 retValue = 1;
 263         return retValue;
 264 }
 265
 266 static void HTIOTActDetermineRaFunc(struct rtllib_device *ieee, bool bPeerRx2ss)
 267 {
 268         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 269
 270         pHTInfo->IOTRaFunc &= HT_IOT_RAFUNC_DISABLE_ALL;
 271
 272         if (pHTInfo->IOTPeer == HT_IOT_PEER_RALINK && !bPeerRx2ss)
 273                 pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_PEER_1R;
 274
 275         if (pHTInfo->IOTAction & HT_IOT_ACT_AMSDU_ENABLE)
 276                 pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_TX_AMSDU;
 277
 278 }
 279
 280 void HTResetIOTSetting(struct rt_hi_throughput *pHTInfo)
 281 {
 282         pHTInfo->IOTAction = 0;
 283         pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
 284         pHTInfo->IOTRaFunc = 0;
 285 }
 286
 287 void HTConstructCapabilityElement(struct rtllib_device *ieee, u8 *posHTCap,
 288                                   u8 *len, u8 IsEncrypt, bool bAssoc)
 289 {
 290         struct rt_hi_throughput *pHT = ieee->pHTInfo;
 291         struct ht_capab_ele *pCapELE = NULL;
 292
 293         if ((posHTCap == NULL) || (pHT == NULL)) {
 294                 RTLLIB_DEBUG(RTLLIB_DL_ERR,
 295                              "posHTCap or pHTInfo can't be null in HTConstructCapabilityElement()\n");
 296                 return;
 297         }
 298         memset(posHTCap, 0, *len);
 299
 300         if ((bAssoc) && (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)) {
 301                 u8      EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
 302
 303                 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
 304                 pCapELE = (struct ht_capab_ele *)&(posHTCap[4]);
 305                 *len = 30 + 2;
 306         } else {
 307                 pCapELE = (struct ht_capab_ele *)posHTCap;
 308                 *len = 26 + 2;
 309         }
 310
 311         pCapELE->AdvCoding              = 0;
 312         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 313                 pCapELE->ChlWidth = 0;
 314         else
 315                 pCapELE->ChlWidth = (pHT->bRegBW40MHz ? 1 : 0);
 316
 317         pCapELE->MimoPwrSave            = pHT->SelfMimoPs;
 318         pCapELE->GreenField             = 0;
 319         pCapELE->ShortGI20Mhz           = 1;
 320         pCapELE->ShortGI40Mhz           = 1;
 321
 322         pCapELE->TxSTBC                 = 1;
 323         pCapELE->RxSTBC                 = 0;
 324         pCapELE->DelayBA                = 0;
 325         pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE >= 7935) ? 1 : 0;
 326         pCapELE->DssCCk = ((pHT->bRegBW40MHz) ? (pHT->bRegSuppCCK ? 1 : 0) : 0);
 327         pCapELE->PSMP = 0;
 328         pCapELE->LSigTxopProtect = 0;
 329
 330
 331         RTLLIB_DEBUG(RTLLIB_DL_HT,
 332                      "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n",
 333                      pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
 334
 335         if (IsEncrypt) {
 336                 pCapELE->MPDUDensity    = 7;
 337                 pCapELE->MaxRxAMPDUFactor       = 2;
 338         } else {
 339                 pCapELE->MaxRxAMPDUFactor       = 3;
 340                 pCapELE->MPDUDensity    = 0;
 341         }
 342
 343         memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
 344         memset(&pCapELE->ExtHTCapInfo, 0, 2);
 345         memset(pCapELE->TxBFCap, 0, 4);
 346
 347         pCapELE->ASCap = 0;
 348
 349         if (bAssoc) {
 350                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
 351                         pCapELE->MCS[1] &= 0x7f;
 352
 353                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
 354                         pCapELE->MCS[1] &= 0xbf;
 355
 356                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
 357                         pCapELE->MCS[1] &= 0x00;
 358
 359                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_RX_40MHZ_SHORT_GI)
 360                         pCapELE->ShortGI40Mhz           = 0;
 361
 362                 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) {
 363                         pCapELE->ChlWidth = 0;
 364                         pCapELE->MCS[1] = 0;
 365                 }
 366         }
 367 }
 368
 369 void HTConstructInfoElement(struct rtllib_device *ieee, u8 *posHTInfo,
 370                             u8 *len, u8 IsEncrypt)
 371 {
 372         struct rt_hi_throughput *pHT = ieee->pHTInfo;
 373         struct ht_info_ele *pHTInfoEle = (struct ht_info_ele *)posHTInfo;
 374
 375         if ((posHTInfo == NULL) || (pHTInfoEle == NULL)) {
 376                 RTLLIB_DEBUG(RTLLIB_DL_ERR,
 377                              "posHTInfo or pHTInfoEle can't be null in HTConstructInfoElement()\n");
 378                 return;
 379         }
 380
 381         memset(posHTInfo, 0, *len);
 382         if ((ieee->iw_mode == IW_MODE_ADHOC) ||
 383             (ieee->iw_mode == IW_MODE_MASTER)) {
 384                 pHTInfoEle->ControlChl  = ieee->current_network.channel;
 385                 pHTInfoEle->ExtChlOffset = ((pHT->bRegBW40MHz == false) ?
 386                                             HT_EXTCHNL_OFFSET_NO_EXT :
 387                                             (ieee->current_network.channel <= 6)
 388                                             ? HT_EXTCHNL_OFFSET_UPPER :
 389                                             HT_EXTCHNL_OFFSET_LOWER);
 390                 pHTInfoEle->RecommemdedTxWidth  = pHT->bRegBW40MHz;
 391                 pHTInfoEle->RIFS                        = 0;
 392                 pHTInfoEle->PSMPAccessOnly              = 0;
 393                 pHTInfoEle->SrvIntGranularity           = 0;
 394                 pHTInfoEle->OptMode                     = pHT->CurrentOpMode;
 395                 pHTInfoEle->NonGFDevPresent             = 0;
 396                 pHTInfoEle->DualBeacon                  = 0;
 397                 pHTInfoEle->SecondaryBeacon             = 0;
 398                 pHTInfoEle->LSigTxopProtectFull         = 0;
 399                 pHTInfoEle->PcoActive                   = 0;
 400                 pHTInfoEle->PcoPhase                    = 0;
 401
 402                 memset(pHTInfoEle->BasicMSC, 0, 16);
 403
 404
 405                 *len = 22 + 2;
 406
 407         } else {
 408                 *len = 0;
 409         }
 410 }
 411
 412 void HTConstructRT2RTAggElement(struct rtllib_device *ieee, u8 *posRT2RTAgg,
 413                                 u8 *len)
 414 {
 415         if (posRT2RTAgg == NULL) {
 416                 RTLLIB_DEBUG(RTLLIB_DL_ERR,
 417                              "posRT2RTAgg can't be null in HTConstructRT2RTAggElement()\n");
 418                 return;
 419         }
 420         memset(posRT2RTAgg, 0, *len);
 421         *posRT2RTAgg++ = 0x00;
 422         *posRT2RTAgg++ = 0xe0;
 423         *posRT2RTAgg++ = 0x4c;
 424         *posRT2RTAgg++ = 0x02;
 425         *posRT2RTAgg++ = 0x01;
 426
 427         *posRT2RTAgg = 0x30;
 428
 429         if (ieee->bSupportRemoteWakeUp)
 430                 *posRT2RTAgg |= RT_HT_CAP_USE_WOW;
 431
 432         *len = 6 + 2;
 433 }
 434
 435 static u8 HT_PickMCSRate(struct rtllib_device *ieee, u8 *pOperateMCS)
 436 {
 437         u8 i;
 438
 439         if (pOperateMCS == NULL) {
 440                 RTLLIB_DEBUG(RTLLIB_DL_ERR,
 441                              "pOperateMCS can't be null in HT_PickMCSRate()\n");
 442                 return false;
 443         }
 444
 445         switch (ieee->mode) {
 446         case IEEE_A:
 447         case IEEE_B:
 448         case IEEE_G:
 449                 for (i = 0; i <= 15; i++)
 450                         pOperateMCS[i] = 0;
 451                 break;
 452         case IEEE_N_24G:
 453         case IEEE_N_5G:
 454                 pOperateMCS[0] &= RATE_ADPT_1SS_MASK;
 455                 pOperateMCS[1] &= RATE_ADPT_2SS_MASK;
 456                 pOperateMCS[3] &= RATE_ADPT_MCS32_MASK;
 457                 break;
 458         default:
 459                 break;
 460
 461         }
 462
 463         return true;
 464 }
 465
 466 u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
 467                        u8 *pMCSFilter)
 468 {
 469         u8              i, j;
 470         u8              bitMap;
 471         u8              mcsRate = 0;
 472         u8              availableMcsRate[16];
 473
 474         if (pMCSRateSet == NULL || pMCSFilter == NULL) {
 475                 RTLLIB_DEBUG(RTLLIB_DL_ERR,
 476                              "pMCSRateSet or pMCSFilter can't be null in HTGetHighestMCSRate()\n");
 477                 return false;
 478         }
 479         for (i = 0; i < 16; i++)
 480                 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
 481
 482         for (i = 0; i < 16; i++) {
 483                 if (availableMcsRate[i] != 0)
 484                         break;
 485         }
 486         if (i == 16)
 487                 return false;
 488
 489         for (i = 0; i < 16; i++) {
 490                 if (availableMcsRate[i] != 0) {
 491                         bitMap = availableMcsRate[i];
 492                         for (j = 0; j < 8; j++) {
 493                                 if ((bitMap%2) != 0) {
 494                                         if (HTMcsToDataRate(ieee, (8*i+j)) >
 495                                             HTMcsToDataRate(ieee, mcsRate))
 496                                                 mcsRate = (8*i+j);
 497                                 }
 498                                 bitMap >>= 1;
 499                         }
 500                 }
 501         }
 502         return mcsRate | 0x80;
 503 }
 504
 505 u8 HTFilterMCSRate(struct rtllib_device *ieee, u8 *pSupportMCS, u8 *pOperateMCS)
 506 {
 507
 508         u8 i;
 509
 510         for (i = 0; i <= 15; i++)
 511                 pOperateMCS[i] = ieee->Regdot11TxHTOperationalRateSet[i] &
 512                                  pSupportMCS[i];
 513
 514         HT_PickMCSRate(ieee, pOperateMCS);
 515
 516         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 517                 pOperateMCS[1] = 0;
 518
 519         for (i = 2; i <= 15; i++)
 520                 pOperateMCS[i] = 0;
 521
 522         return true;
 523 }
 524
 525 void HTSetConnectBwMode(struct rtllib_device *ieee,
 526                         enum ht_channel_width Bandwidth,
 527                         enum ht_extchnl_offset Offset);
 528
 529 void HTOnAssocRsp(struct rtllib_device *ieee)
 530 {
 531         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 532         struct ht_capab_ele *pPeerHTCap = NULL;
 533         struct ht_info_ele *pPeerHTInfo = NULL;
 534         u16 nMaxAMSDUSize = 0;
 535         u8 *pMcsFilter = NULL;
 536
 537         static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
 538         static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};
 539
 540         if (pHTInfo->bCurrentHTSupport == false) {
 541                 RTLLIB_DEBUG(RTLLIB_DL_ERR,
 542                              "<=== HTOnAssocRsp(): HT_DISABLE\n");
 543                 return;
 544         }
 545         RTLLIB_DEBUG(RTLLIB_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
 546
 547         if (!memcmp(pHTInfo->PeerHTCapBuf, EWC11NHTCap, sizeof(EWC11NHTCap)))
 548                 pPeerHTCap = (struct ht_capab_ele *)(&pHTInfo->PeerHTCapBuf[4]);
 549         else
 550                 pPeerHTCap = (struct ht_capab_ele *)(pHTInfo->PeerHTCapBuf);
 551
 552         if (!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
 553                 pPeerHTInfo = (struct ht_info_ele *)
 554                              (&pHTInfo->PeerHTInfoBuf[4]);
 555         else
 556                 pPeerHTInfo = (struct ht_info_ele *)(pHTInfo->PeerHTInfoBuf);
 557
 558         RTLLIB_DEBUG_DATA(RTLLIB_DL_DATA | RTLLIB_DL_HT, pPeerHTCap,
 559                           sizeof(struct ht_capab_ele));
 560         HTSetConnectBwMode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth),
 561                           (enum ht_extchnl_offset)(pPeerHTInfo->ExtChlOffset));
 562         pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1) ?
 563                                  true : false);
 564
 565         pHTInfo->bCurShortGI20MHz = ((pHTInfo->bRegShortGI20MHz) ?
 566                                     ((pPeerHTCap->ShortGI20Mhz == 1) ?
 567                                     true : false) : false);
 568         pHTInfo->bCurShortGI40MHz = ((pHTInfo->bRegShortGI40MHz) ?
 569                                      ((pPeerHTCap->ShortGI40Mhz == 1) ?
 570                                      true : false) : false);
 571
 572         pHTInfo->bCurSuppCCK = ((pHTInfo->bRegSuppCCK) ?
 573                                ((pPeerHTCap->DssCCk == 1) ? true :
 574                                false) : false);
 575
 576
 577         pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
 578
 579         nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize == 0) ? 3839 : 7935;
 580
 581         if (pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize)
 582                 pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
 583         else
 584                 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
 585
 586         pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
 587         if (ieee->rtllib_ap_sec_type &&
 588            (ieee->rtllib_ap_sec_type(ieee)&(SEC_ALG_WEP|SEC_ALG_TKIP))) {
 589                 if ((pHTInfo->IOTPeer == HT_IOT_PEER_ATHEROS) ||
 590                                 (pHTInfo->IOTPeer == HT_IOT_PEER_UNKNOWN))
 591                         pHTInfo->bCurrentAMPDUEnable = false;
 592         }
 593
 594         if (!pHTInfo->bRegRT2RTAggregation) {
 595                 if (pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
 596                         pHTInfo->CurrentAMPDUFactor =
 597                                                  pPeerHTCap->MaxRxAMPDUFactor;
 598                 else
 599                         pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
 600
 601         } else {
 602                 if (ieee->current_network.bssht.bdRT2RTAggregation) {
 603                         if (ieee->pairwise_key_type != KEY_TYPE_NA)
 604                                 pHTInfo->CurrentAMPDUFactor =
 605                                                  pPeerHTCap->MaxRxAMPDUFactor;
 606                         else
 607                                 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
 608                 } else {
 609                         if (pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
 610                                 pHTInfo->CurrentAMPDUFactor =
 611                                                  pPeerHTCap->MaxRxAMPDUFactor;
 612                         else
 613                                 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
 614                 }
 615         }
 616         if (pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
 617                 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
 618         else
 619                 pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
 620         if (pHTInfo->IOTAction & HT_IOT_ACT_TX_USE_AMSDU_8K) {
 621                 pHTInfo->bCurrentAMPDUEnable = false;
 622                 pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
 623                 pHTInfo->ForcedAMSDUMaxSize = 7935;
 624         }
 625         pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
 626
 627         if (pPeerHTCap->MCS[0] == 0)
 628                 pPeerHTCap->MCS[0] = 0xff;
 629
 630         HTIOTActDetermineRaFunc(ieee, ((pPeerHTCap->MCS[1]) != 0));
 631
 632         HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
 633
 634         pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
 635         if (pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
 636                 pMcsFilter = MCS_FILTER_1SS;
 637         else
 638                 pMcsFilter = MCS_FILTER_ALL;
 639         ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
 640                                    ieee->dot11HTOperationalRateSet, pMcsFilter);
 641         ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
 642
 643         pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
 644 }
 645
 646 void HTInitializeHTInfo(struct rtllib_device *ieee)
 647 {
 648         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 649
 650         RTLLIB_DEBUG(RTLLIB_DL_HT, "===========>%s()\n", __func__);
 651         pHTInfo->bCurrentHTSupport = false;
 652
 653         pHTInfo->bCurBW40MHz = false;
 654         pHTInfo->bCurTxBW40MHz = false;
 655
 656         pHTInfo->bCurShortGI20MHz = false;
 657         pHTInfo->bCurShortGI40MHz = false;
 658         pHTInfo->bForcedShortGI = false;
 659
 660         pHTInfo->bCurSuppCCK = true;
 661
 662         pHTInfo->bCurrent_AMSDU_Support = false;
 663         pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
 664         pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
 665         pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
 666
 667         memset((void *)(&(pHTInfo->SelfHTCap)), 0,
 668                 sizeof(pHTInfo->SelfHTCap));
 669         memset((void *)(&(pHTInfo->SelfHTInfo)), 0,
 670                 sizeof(pHTInfo->SelfHTInfo));
 671         memset((void *)(&(pHTInfo->PeerHTCapBuf)), 0,
 672                 sizeof(pHTInfo->PeerHTCapBuf));
 673         memset((void *)(&(pHTInfo->PeerHTInfoBuf)), 0,
 674                 sizeof(pHTInfo->PeerHTInfoBuf));
 675
 676         pHTInfo->bSwBwInProgress = false;
 677         pHTInfo->ChnlOp = CHNLOP_NONE;
 678
 679         pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
 680
 681         pHTInfo->bCurrentRT2RTAggregation = false;
 682         pHTInfo->bCurrentRT2RTLongSlotTime = false;
 683         pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 684
 685         pHTInfo->IOTPeer = 0;
 686         pHTInfo->IOTAction = 0;
 687         pHTInfo->IOTRaFunc = 0;
 688
 689         {
 690                 u8 *RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
 691
 692                 RegHTSuppRateSets[0] = 0xFF;
 693                 RegHTSuppRateSets[1] = 0xFF;
 694                 RegHTSuppRateSets[4] = 0x01;
 695         }
 696 }
 697
 698 void HTInitializeBssDesc(struct bss_ht *pBssHT)
 699 {
 700
 701         pBssHT->bdSupportHT = false;
 702         memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
 703         pBssHT->bdHTCapLen = 0;
 704         memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
 705         pBssHT->bdHTInfoLen = 0;
 706
 707         pBssHT->bdHTSpecVer = HT_SPEC_VER_IEEE;
 708
 709         pBssHT->bdRT2RTAggregation = false;
 710         pBssHT->bdRT2RTLongSlotTime = false;
 711         pBssHT->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 712 }
 713
 714 void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
 715                                    struct rtllib_network *pNetwork)
 716 {
 717         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 718         u8      bIOTAction = 0;
 719
 720         RTLLIB_DEBUG(RTLLIB_DL_HT, "==============>%s()\n", __func__);
 721         /* unmark bEnableHT flag here is the same reason why unmarked in
 722          * function rtllib_softmac_new_net. WB 2008.09.10
 723          */
 724         if (pNetwork->bssht.bdSupportHT) {
 725                 pHTInfo->bCurrentHTSupport = true;
 726                 pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
 727
 728                 if (pNetwork->bssht.bdHTCapLen > 0 &&
 729                     pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
 730                         memcpy(pHTInfo->PeerHTCapBuf,
 731                                pNetwork->bssht.bdHTCapBuf,
 732                                pNetwork->bssht.bdHTCapLen);
 733
 734                 if (pNetwork->bssht.bdHTInfoLen > 0 &&
 735                     pNetwork->bssht.bdHTInfoLen <=
 736                     sizeof(pHTInfo->PeerHTInfoBuf))
 737                         memcpy(pHTInfo->PeerHTInfoBuf,
 738                                pNetwork->bssht.bdHTInfoBuf,
 739                                pNetwork->bssht.bdHTInfoLen);
 740
 741                 if (pHTInfo->bRegRT2RTAggregation) {
 742                         pHTInfo->bCurrentRT2RTAggregation =
 743                                  pNetwork->bssht.bdRT2RTAggregation;
 744                         pHTInfo->bCurrentRT2RTLongSlotTime =
 745                                  pNetwork->bssht.bdRT2RTLongSlotTime;
 746                         pHTInfo->RT2RT_HT_Mode = pNetwork->bssht.RT2RT_HT_Mode;
 747                 } else {
 748                         pHTInfo->bCurrentRT2RTAggregation = false;
 749                         pHTInfo->bCurrentRT2RTLongSlotTime = false;
 750                         pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 751                 }
 752
 753                 HTIOTPeerDetermine(ieee);
 754
 755                 pHTInfo->IOTAction = 0;
 756                 bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
 757                 if (bIOTAction)
 758                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
 759
 760                 bIOTAction = HTIOTActIsDisableMCS15(ieee);
 761                 if (bIOTAction)
 762                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
 763
 764                 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee);
 765                 if (bIOTAction)
 766                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;
 767
 768
 769                 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
 770                 if (bIOTAction)
 771                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
 772
 773                 bIOTAction = HTIOTActIsMgntUseCCK6M(ieee, pNetwork);
 774                 if (bIOTAction)
 775                         pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;
 776                 bIOTAction = HTIOTActIsCCDFsync(ieee);
 777                 if (bIOTAction)
 778                         pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
 779         } else {
 780                 pHTInfo->bCurrentHTSupport = false;
 781                 pHTInfo->bCurrentRT2RTAggregation = false;
 782                 pHTInfo->bCurrentRT2RTLongSlotTime = false;
 783                 pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 784
 785                 pHTInfo->IOTAction = 0;
 786                 pHTInfo->IOTRaFunc = 0;
 787         }
 788 }
 789
 790 void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
 791                                      struct rtllib_network *pNetwork)
 792 {
 793         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 794         struct ht_info_ele *pPeerHTInfo =
 795                  (struct ht_info_ele *)pNetwork->bssht.bdHTInfoBuf;
 796
 797         if (pHTInfo->bCurrentHTSupport) {
 798                 if (pNetwork->bssht.bdHTInfoLen != 0)
 799                         pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
 800         }
 801 }
 802 EXPORT_SYMBOL(HT_update_self_and_peer_setting);
 803
 804 void HTUseDefaultSetting(struct rtllib_device *ieee)
 805 {
 806         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 807
 808         if (pHTInfo->bEnableHT) {
 809                 pHTInfo->bCurrentHTSupport = true;
 810                 pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK;
 811
 812                 pHTInfo->bCurBW40MHz = pHTInfo->bRegBW40MHz;
 813                 pHTInfo->bCurShortGI20MHz = pHTInfo->bRegShortGI20MHz;
 814
 815                 pHTInfo->bCurShortGI40MHz = pHTInfo->bRegShortGI40MHz;
 816
 817                 if (ieee->iw_mode == IW_MODE_ADHOC)
 818                         ieee->current_network.qos_data.active =
 819                                  ieee->current_network.qos_data.supported;
 820                 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
 821                 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
 822
 823                 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
 824                 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
 825
 826                 pHTInfo->CurrentMPDUDensity = pHTInfo->CurrentMPDUDensity;
 827
 828                 HTFilterMCSRate(ieee, ieee->Regdot11TxHTOperationalRateSet,
 829                                 ieee->dot11HTOperationalRateSet);
 830                 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
 831                                            ieee->dot11HTOperationalRateSet,
 832                                            MCS_FILTER_ALL);
 833                 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
 834
 835         } else {
 836                 pHTInfo->bCurrentHTSupport = false;
 837         }
 838 }
 839
 840 u8 HTCCheck(struct rtllib_device *ieee, u8 *pFrame)
 841 {
 842         if (ieee->pHTInfo->bCurrentHTSupport) {
 843                 if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
 844                         RTLLIB_DEBUG(RTLLIB_DL_HT,
 845                                      "HT CONTROL FILED EXIST!!\n");
 846                         return true;
 847                 }
 848         }
 849         return false;
 850 }
 851
 852 static void HTSetConnectBwModeCallback(struct rtllib_device *ieee)
 853 {
 854         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 855
 856         RTLLIB_DEBUG(RTLLIB_DL_HT, "======>%s()\n", __func__);
 857         if (pHTInfo->bCurBW40MHz) {
 858                 if (pHTInfo->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_UPPER)
 859                         ieee->set_chan(ieee->dev,
 860                                        ieee->current_network.channel + 2);
 861                 else if (pHTInfo->CurSTAExtChnlOffset ==
 862                          HT_EXTCHNL_OFFSET_LOWER)
 863                         ieee->set_chan(ieee->dev,
 864                                        ieee->current_network.channel - 2);
 865                 else
 866                         ieee->set_chan(ieee->dev,
 867                                        ieee->current_network.channel);
 868
 869                 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40,
 870                                        pHTInfo->CurSTAExtChnlOffset);
 871         } else {
 872                 ieee->set_chan(ieee->dev, ieee->current_network.channel);
 873                 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20,
 874                                        HT_EXTCHNL_OFFSET_NO_EXT);
 875         }
 876
 877         pHTInfo->bSwBwInProgress = false;
 878 }
 879
 880 void HTSetConnectBwMode(struct rtllib_device *ieee,
 881                         enum ht_channel_width Bandwidth,
 882                         enum ht_extchnl_offset Offset)
 883 {
 884         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 885
 886         if (pHTInfo->bRegBW40MHz == false)
 887                 return;
 888
 889         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 890                 Bandwidth = HT_CHANNEL_WIDTH_20;
 891
 892         if (pHTInfo->bSwBwInProgress) {
 893                 pr_info("%s: bSwBwInProgress!!\n", __func__);
 894                 return;
 895         }
 896         if (Bandwidth == HT_CHANNEL_WIDTH_20_40) {
 897                 if (ieee->current_network.channel < 2 &&
 898                     Offset == HT_EXTCHNL_OFFSET_LOWER)
 899                         Offset = HT_EXTCHNL_OFFSET_NO_EXT;
 900                 if (Offset == HT_EXTCHNL_OFFSET_UPPER ||
 901                     Offset == HT_EXTCHNL_OFFSET_LOWER) {
 902                         pHTInfo->bCurBW40MHz = true;
 903                         pHTInfo->CurSTAExtChnlOffset = Offset;
 904                 } else {
 905                         pHTInfo->bCurBW40MHz = false;
 906                         pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
 907                 }
 908         } else {
 909                 pHTInfo->bCurBW40MHz = false;
 910                 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
 911         }
 912
 913         pr_info("%s():pHTInfo->bCurBW40MHz:%x\n", __func__,
 914                pHTInfo->bCurBW40MHz);
 915
 916         pHTInfo->bSwBwInProgress = true;
 917
 918         HTSetConnectBwModeCallback(ieee);
 919 }